diff --git a/docs/overview/About HarmonyOS.rst b/docs/overview/About-HarmonyOS.rst
similarity index 99%
rename from docs/overview/About HarmonyOS.rst
rename to docs/overview/About-HarmonyOS.rst
index e5f8d67bf158f1d2e7cbb38418991f20500499a1..65768a8ec97c4fa42ceefd57bde9447f0d9010b0 100644
--- a/docs/overview/About HarmonyOS.rst	
+++ b/docs/overview/About-HarmonyOS.rst
@@ -62,4 +62,4 @@ This layer provides what you need to develop HarmonyOS applications: application
 Application Layer
 -----------------
 
-This layer consists of system applications and third-party applications. Each HarmonyOS application is powered by one or more Feature Abilities (FAs) or Particle Abilities (PAs). An FA provides a UI for user interaction. A PA has no UI and provides background task processing as well as data access. Applications developed based on FAs and PAs implement specific business characteristics and achieve cross-device scheduling and distribution, delighting users with consistent and efficient experience.
\ No newline at end of file
+This layer consists of system applications and third-party applications. Each HarmonyOS application is powered by one or more Feature Abilities (FAs) or Particle Abilities (PAs). An FA provides a UI for user interaction. A PA has no UI and provides background task processing as well as data access. Applications developed based on FAs and PAs implement specific business characteristics and achieve cross-device scheduling and distribution, delighting users with consistent and efficient experience.
diff --git a/docs/overview/System Security.rst b/docs/overview/System-Security.rst
similarity index 100%
rename from docs/overview/System Security.rst
rename to docs/overview/System-Security.rst
diff --git a/docs/overview/Technical Features.rst b/docs/overview/Technical-Features.rst
similarity index 100%
rename from docs/overview/Technical Features.rst
rename to docs/overview/Technical-Features.rst